Apparatus

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sensors Mode-S transponder

7CAF19

ICAO 24-bit transponder address · allocated to Australia

Hex
7CAF19
Octal
37127431
Decimal
8,171,289
Country
AU
No current signal · last broadcast 45m ago
Flights observed
84
Distinct callsigns
20
Country
AU
Last broadcast
45m ago

Last known position

Most recent position reported by Mode-S 7CAF19.

Country allocation

The ICAO 24-bit address 7CAF19 falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
VOZ9947 - 4 2026-06-20
VOZ9327 - 3 2026-07-14
BOE029 - 3 2026-06-11
VOZ9481 - 2 2026-07-13
VOZ9224 - 2 2026-07-01
VOZ811 - 2 2026-06-29
VOZ555 - 2 2026-06-30
VOZ520 - 2 2026-06-27
VOZ515 - 2 2026-06-27
VOZ1723 - 2 2026-07-09
VOZ1465 - 2 2026-06-29
VOZ1456 - 2 2026-06-29
VOZ1349 - 2 2026-07-03
BOE123 - 2 2026-05-23
VOZ9946 Virgin Australia 1 2026-06-13
VOZ9485 - 1 2026-07-08
VOZ9475 - 1 2026-07-13
VOZ9429 - 1 2026-06-30
VOZ9417 - 1 2026-07-06
VOZ9293 - 1 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 VOZ9327 - Jul 14, 05:40 UTCJul 14, 06:10 UTC30m
2026-07-13 VOZ9481 PER → PER Jul 13, 23:35 UTCJul 14, 04:20 UTC4h 45m
2026-07-13 VOZ9293 PER → PER Jul 13, 06:30 UTCJul 13, 10:50 UTC4h 20m
2026-07-13 VOZ9475 PER → PER Jul 13, 00:20 UTCJul 13, 04:30 UTC4h 10m
2026-07-12 VOZ699 MEL → PER Jul 12, 09:40 UTCJul 12, 13:30 UTC3h 50m
2026-07-12 VOZ692 PER → MEL Jul 12, 04:55 UTCJul 12, 08:10 UTC3h 15m
2026-07-11 VOZ681 MEL → PER Jul 11, 23:50 UTCJul 12, 03:40 UTC3h 50m
2026-07-11 VOZ882 SYD → MEL Jul 11, 09:30 UTCJul 11, 11:00 UTC1h 30m
2026-07-11 VOZ534 - Jul 11, 06:50 UTCJul 11, 08:05 UTC1h 15m
2026-07-11 VOZ525 - Jul 11, 05:01 UTCJul 11, 05:55 UTC55m
2026-07-10 VOZ552 PER → SYD Jul 10, 22:55 UTCJul 11, 02:40 UTC3h 45m
2026-07-10 VOZ1889 PER → PER Jul 10, 07:10 UTCJul 10, 11:00 UTC3h 50m
2026-07-09 VOZ1723 PER → PER Jul 9, 23:10 UTCJul 10, 03:55 UTC4h 45m
2026-07-09 VOZ9327 PER → PER Jul 9, 05:25 UTCJul 9, 09:45 UTC4h 20m
2026-07-08 VOZ9485 PER → PER Jul 8, 22:25 UTCJul 9, 02:55 UTC4h 30m
2026-07-08 VOZ9215 PER → PER Jul 8, 05:45 UTCJul 8, 10:55 UTC5h 10m
2026-07-07 VOZ9083 PER → PER Jul 7, 22:40 UTCJul 8, 03:05 UTC4h 25m
2026-07-07 VOZ9327 PER → PER Jul 7, 05:45 UTCJul 7, 09:40 UTC3h 55m
2026-07-06 VOZ9481 PER → PER Jul 6, 23:45 UTCJul 7, 04:15 UTC4h 30m
2026-07-06 VOZ9417 PER → PER Jul 6, 04:55 UTCJul 6, 08:40 UTC3h 45m
2026-07-05 VOZ9245 PER → PER Jul 5, 23:00 UTCJul 6, 03:00 UTC4h 0m
2026-07-05 VOZ701 MEL → PER Jul 5, 10:00 UTCJul 5, 13:35 UTC3h 35m
2026-07-05 VOZ866 SYD → MEL Jul 5, 07:20 UTCJul 5, 08:40 UTC1h 20m
2026-07-05 VOZ849 - Jul 5, 04:25 UTCJul 5, 05:35 UTC1h 10m
2026-07-04 VOZ682 PER → MEL Jul 4, 23:40 UTCJul 5, 02:55 UTC3h 15m
2026-07-04 VOZ721 - Jul 4, 09:05 UTCJul 4, 11:55 UTC2h 50m
2026-07-04 VOZ718 PER → ADL Jul 4, 05:30 UTCJul 4, 08:10 UTC2h 40m
2026-07-03 VOZ1723 PER → PER Jul 3, 23:25 UTCJul 4, 04:05 UTC4h 40m
2026-07-03 VOZ567 SYD → PER Jul 3, 08:55 UTCJul 3, 13:20 UTC4h 25m
2026-07-03 VOZ1350 - Jul 3, 06:35 UTCJul 3, 07:25 UTC50m
2026-07-03 VOZ1349 - Jul 3, 02:15 UTCJul 3, 02:25 UTC10m
2026-07-02 VOZ1349 - Jul 2, 22:05 UTCJul 2, 23:00 UTC55m
2026-07-02 VOZ562 PER → SYD Jul 2, 08:10 UTCJul 2, 11:55 UTC3h 45m
2026-07-01 VOZ9291 PER → PER Jul 1, 22:25 UTCJul 2, 06:00 UTC7h 35m
2026-07-01 VOZ9265 PER → PER Jul 1, 07:10 UTCJul 1, 11:30 UTC4h 20m
2026-07-01 VOZ9224 BQB → PER Jul 1, 04:30 UTCJul 1, 05:05 UTC35m
2026-06-30 VOZ9224 BQB → BQB Jun 30, 22:55 UTCJul 1, 03:45 UTC4h 50m
2026-06-30 VOZ9429 PER → BQB Jun 30, 21:40 UTCJun 30, 22:10 UTC30m
2026-06-30 VOZ1862 - Jun 30, 09:55 UTCJun 30, 11:05 UTC1h 10m
2026-06-30 VOZ1863 PER → KGI Jun 30, 08:15 UTCJun 30, 09:00 UTC45m
2026-06-30 VOZ555 - Jun 30, 03:20 UTCJun 30, 07:00 UTC3h 40m
2026-06-30 VOZ555 - Jun 30, 02:15 UTCJun 30, 02:55 UTC40m
2026-06-29 VOZ811 MEL → SYD Jun 29, 23:29 UTCJun 30, 01:04 UTC1h 35m
2026-06-29 VOZ1456 - Jun 29, 18:44 UTCJun 29, 19:20 UTC35m
2026-06-29 VOZ1465 - Jun 29, 10:04 UTCJun 29, 11:14 UTC1h 10m
2026-06-29 VOZ744 - Jun 29, 06:19 UTCJun 29, 08:44 UTC2h 25m
2026-06-29 VOZ743 - Jun 29, 03:44 UTCJun 29, 05:24 UTC1h 40m
2026-06-29 VOZ826 - Jun 29, 00:05 UTCJun 29, 01:20 UTC1h 15m
2026-06-28 VOZ813 MEL → SYD Jun 28, 21:45 UTCJun 28, 22:55 UTC1h 10m
2026-06-28 VOZ1456 - Jun 28, 18:25 UTCJun 28, 18:59 UTC35m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Mode-S 7CAF19 frequently asked

What is Mode-S code 7CAF19?
7CAF19 is an ICAO 24-bit transponder address. Allocated to Australia.
Where is Mode-S 7CAF19 registered?
Mode-S code 7CAF19 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7CAF19 broadcasting right now?
No active broadcast right now. Last signal was 45m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7CAF19, octal 37127431, decimal 8,171,289.
What flights does 7CAF19 operate?
Mode-S 7CAF19 has broadcast 20 distinct callsigns, including VOZ9947, VOZ9327, BOE029, VOZ9481, VOZ9224.